/**
 * Copyright (c) 2009 Jim Hurne
 * 
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 * 
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */
package org.tzconverter.main;


/**
 * Description of TimeZoneConverterView and its usage.
 * 
 * @since Apr 19, 2009
 */

public interface MainView
{
  /**
   * Displays a modal dialog box that allows the user to change the opacity level.
   */
  public void showOpacityLevelDialog();
  
  /**
   * Displays the About modal dialog box.
   */
  public void showAboutDialog();
  
  /**
   * Closes the main window. 
   */
  public void close();
  
  /**
   * Sets whether or not the view should always be displayed on top of all other windows.
   * 
   * @param alwaysOnTop
   */
  public void setAlwaysOnTop(boolean alwaysOnTop);
  
  /**
   * Sets the opacity level of the view.
   * 
   * @param translucent
   */
  public void setOpacityLevel(float level);
  
  
  
  /**
   * Returns true if translucent effects are supported on the
   * current platform.
   *  
   * @return
   */
  public boolean isTranslucencySupported();  
}
